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annotate pmac_ntz.c @ 16:09ab3354aa21 libtomcrypt

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propagate of e8bea23df30f9f46c647d06db3b223427b4e3604 and b0b6b4a8843b94d9f049cb5ffe0b1ae91ec1bf8b from branch 'au.asn.ucc.matt.ltc-orig' to 'au.asn.ucc.matt.ltc-db'
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Jun 2004 14:27:14 +0000
parents d7da3b1e1540
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11
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12 /* PMAC implementation by Tom St Denis */
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13 #include "mycrypt.h"
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14
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15 #ifdef PMAC
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16
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17 int pmac_ntz(unsigned long x)
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18 {
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19 int c;
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20 x &= 0xFFFFFFFFUL;
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21 c = 0;
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22 while ((x & 1) == 0) {
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23 ++c;
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24 x >>= 1;
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25 }
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26 return c;
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27 }
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28
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29 #endif